benjamin moore American white looks lilac on walls at night. Any paint color suggestions to paint over it that would only require one coat? Our painter primed our walls with linen white and I think the yellow undertones are making it purple. We ideally wanted the wallsto be a light gray. Will post a picture tomorrow in the day light. Thanks so much! (I read the posts on gray walls looking gray but couldn't find a remedy color to paint over to look less purple.)